Multiple installs of Calculator

I am new to Linux and I have found that there are multiple installs of calculator. How do I remove one or are these simply 2 links to the same app? I am running Ubuntu 18.04.1 LTS

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The command snap list will list all snaps (programs packaged as snaps) you have installed; I have gnome-calculator on my Ubuntu 18.04 LTS. I also ran the command dpkg -l |grep -i calc which lists all packages and filters so only those with “calc” in their list. My own system contains multiple calculators here; I suspect only the snap one I mentioned is default install. You will have to go to a support site for further help (such as how to remove any unwanted ones).